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:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--primary:#6c3ce1;--primary-light:#8b5cf6;--primary-dark:#5b21b6;--accent:#06d6a0;--accent-glow:#06d6a040;--gold:#d4a843;--gold-light:#f0d078;--gold-dark:#b8922e;--gold-glow:#d4a84340;--bg-dark:#0b0d17;--bg-card:#ffffff0a;--bg-glass:#ffffff0f;--border-glass:#ffffff14;--text-primary:#f1f5f9;--text-secondary:#94a3b8;--text-muted:#64748b;--gradient-hero:linear-gradient(135deg,#6c3ce1 0%,#3b82f6 40%,#d4a843 75%,#f0d078 100%);--gradient-card:linear-gradient(135deg,#6c3ce126 0%,#06d6a014 100%);--shadow-glow:0 0 60px #6c3ce126;--radius:16px;--radius-lg:24px;--overlay-bg:#000000b3;--btn-disabled-bg:#ffffff1a;--btn-disabled-color:#ffffff4d;--separator-color:#ffffff1a}[data-theme=light]{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg-dark:#f8fafc;--bg-card:#fff;--bg-glass:#ffffffa6;--border-glass:#0000001a;--text-primary:#0f172a;--text-secondary:#334155;--text-muted:#64748b;--gradient-card:linear-gradient(135deg,#6c3ce10d 0%,#06d6a00d 100%);--shadow-glow:0 4px 20px #0000000d;--overlay-bg:#fff6;--btn-disabled-bg:#00000014;--btn-disabled-color:#0000004d;--separator-color:#0000001f}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background:var(--bg-dark);color:var(--text-primary);font-family:var(--font-sans),system-ui,-apple-system,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border-glass);border-radius:10px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.prevent-select{-webkit-user-select:none!important;user-select:none!important}.prevent-select input,.prevent-select textarea{-webkit-user-select:auto!important;user-select:auto!important}.bg-grid{z-index:0;pointer-events:none;background-image:radial-gradient(circle at 20% 30%,#6c3ce114 0%,#0000 50%),radial-gradient(circle at 80% 70%,#06d6a00f 0%,#0000 50%),radial-gradient(circle,#3b82f60a 0%,#0000 60%);position:fixed;inset:0}.bg-grid:after{content:"";background-image:linear-gradient(#ffffff05 1px,#0000 1px),linear-gradient(90deg,#ffffff05 1px,#0000 1px);background-size:60px 60px;position:absolute;inset:0}[data-theme=light] .bg-grid:after{background-image:linear-gradient(#00000008 1px,#0000 1px),linear-gradient(90deg,#00000008 1px,#0000 1px)}.navbar{z-index:100;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid var(--border-glass);background:#0b0d17b3;justify-content:space-between;align-items:center;padding:16px 40px;transition:all .3s;display:flex;position:fixed;top:0;left:0;right:0}[data-theme=light] .navbar{background:#ffffffd9}.navbar-logo{background:linear-gradient(135deg,var(--gold)0%,var(--gold-light)50%,var(--primary-light)100%);-webkit-text-fill-color:transparent;letter-spacing:-.5px;-webkit-background-clip:text;background-clip:text;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:1.5rem;font-weight:800}.navbar-links{align-items:center;gap:32px;list-style:none;display:flex}.navbar-links a{color:var(--text-secondary);font-size:.9rem;font-weight:500;text-decoration:none;transition:color .2s}.navbar-links a:hover{color:var(--text-primary)}.study-run-header{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);z-index:50;background:#0b0d17d9;border-bottom:1px solid #ffffff0d}[data-theme=light] .study-run-header{background:#ffffffd9;border-bottom:1px solid #0000000d}.btn-primary{background:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:12px;align-items:center;gap:8px;padding:14px 32px;font-size:1rem;font-weight:600;text-decoration:none;transition:all .3s;display:inline-flex;position:relative;overflow:hidden}.btn-primary:before{content:"";opacity:0;background:linear-gradient(135deg,#0000 0%,#ffffff1a 100%);transition:opacity .3s;position:absolute;inset:0}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px #6c3ce166}.btn-primary:hover:before{opacity:1}.btn-primary:disabled{opacity:.5;cursor:not-allowed;pointer-events:none}.btn-secondary{background:var(--bg-glass);color:var(--text-primary);border:1px solid var(--border-glass);cursor:pointer;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:12px;align-items:center;gap:8px;padding:14px 32px;font-size:1rem;font-weight:600;text-decoration:none;transition:all .3s;display:inline-flex}.btn-secondary:hover{background:#ffffff1a;border-color:#ffffff26;transform:translateY(-2px)}[data-theme=light] .btn-secondary:hover{background:#0000000d;border-color:#0000001a}.btn-secondary:disabled{opacity:.5;cursor:not-allowed;pointer-events:none}.hero{z-index:1;justify-content:center;align-items:center;min-height:100vh;padding:120px 40px 80px;display:flex;position:relative}.hero-content{text-align:center;max-width:800px}.hero-badge{background:var(--bg-glass);border:1px solid var(--border-glass);color:var(--accent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:100px;align-items:center;gap:8px;margin-bottom:32px;padding:8px 20px;font-size:.85rem;font-weight:500;display:inline-flex}.hero-badge .dot{background:var(--accent);border-radius:50%;width:8px;height:8px;animation:2s infinite pulse}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.8)}}.hero h1{letter-spacing:-2px;margin-bottom:24px;font-size:clamp(2.5rem,6vw,4.5rem);font-weight:800;line-height:1.1}.hero h1 .gradient-text{background:var(--gradient-hero);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.hero p{color:var(--text-secondary);max-width:600px;margin:0 auto 40px;font-size:1.25rem;line-height:1.7}.hero-buttons{flex-wrap:wrap;justify-content:center;gap:16px;display:flex}.stats-bar{z-index:1;justify-content:center;gap:48px;padding:60px 40px;display:flex;position:relative}.stat-item{text-align:center}.stat-number{background:var(--gradient-hero);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:2.5rem;font-weight:800}.stat-label{color:var(--text-muted);margin-top:4px;font-size:.9rem}.features{z-index:1;padding:80px 40px;position:relative}.section-header{text-align:center;margin-bottom:64px}.section-tag{color:var(--accent);text-transform:uppercase;letter-spacing:2px;margin-bottom:16px;font-size:.85rem;font-weight:600}.section-title{letter-spacing:-1px;margin-bottom:16px;font-size:clamp(2rem,4vw,3rem);font-weight:800}.section-desc{color:var(--text-secondary);max-width:600px;margin:0 auto;font-size:1.1rem}.features-grid{grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px;max-width:1200px;margin:0 auto;display:grid}.feature-card{background:var(--bg-card);border:1px solid var(--border-glass);border-radius:var(--radius-lg);padding:36px;transition:all .4s;position:relative;overflow:hidden}.feature-card:before{content:"";background:var(--gradient-hero);opacity:0;height:2px;transition:opacity .4s;position:absolute;top:0;left:0;right:0}.feature-card:hover{box-shadow:var(--shadow-glow);background:#ffffff0f;border-color:#ffffff1f;transform:translateY(-4px)}[data-theme=light] .feature-card{background:#fff;border-color:#00000014;box-shadow:0 1px 3px #0000000a}[data-theme=light] .feature-card:hover{background:#fff;border-color:#6c3ce133;box-shadow:0 8px 30px #6c3ce114}[data-theme=light] .feature-icon{background:linear-gradient(135deg,#6c3ce11a 0%,#06d6a014 100%)}[data-theme=light] .cta-card{background:linear-gradient(135deg,#6c3ce10f 0%,#06d6a00a 100%);border-color:#6c3ce126;box-shadow:0 4px 20px #6c3ce10f}.feature-card:hover:before{opacity:1}.feature-icon{background:var(--gradient-card);border:1px solid var(--border-glass);border-radius:14px;justify-content:center;align-items:center;width:56px;height:56px;margin-bottom:20px;font-size:1.5rem;display:flex}.feature-card h3{margin-bottom:12px;font-size:1.25rem;font-weight:700}.feature-card p{color:var(--text-secondary);font-size:.95rem;line-height:1.6}.cta{z-index:1;padding:100px 40px;position:relative}.cta-card{background:var(--gradient-card);border:1px solid var(--border-glass);border-radius:var(--radius-lg);text-align:center;max-width:900px;margin:0 auto;padding:64px;position:relative;overflow:hidden}.cta-card:before{content:"";pointer-events:none;background:radial-gradient(circle,#6c3ce114 0%,#0000 70%);width:200%;height:200%;position:absolute;top:-50%;left:-50%}.cta-card h2{margin-bottom:16px;font-size:clamp(1.8rem,3vw,2.5rem);font-weight:800;position:relative}.cta-card p{color:var(--text-secondary);margin-bottom:32px;font-size:1.1rem;position:relative}.footer{border-top:1px solid var(--border-glass);text-align:center;z-index:1;padding:40px;position:relative}.footer p{color:var(--text-muted);font-size:.85rem}@media (max-width:768px){.navbar{padding:16px 20px}.navbar-links{display:none}.hero{padding:100px 20px 60px}.hero h1{letter-spacing:-1px}.stats-bar{flex-wrap:wrap;gap:24px;padding:40px 20px}.stat-item{min-width:120px}.features{padding:60px 20px}.features-grid{grid-template-columns:1fr}.cta{padding:60px 20px}.cta-card{padding:40px 24px}}.auth-page{min-height:100vh;position:relative}.auth-container{z-index:1;justify-content:center;align-items:center;min-height:100vh;padding:40px 20px;display:flex;position:relative}.auth-card{background:var(--bg-card);border:1px solid var(--border-glass);border-radius:var(--radius-lg);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);width:100%;max-width:440px;padding:48px 40px}.auth-logo{text-align:center;background:linear-gradient(135deg,var(--gold)0%,var(--gold-light)50%,var(--primary-light)100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin-bottom:32px;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:2rem;font-weight:800;text-decoration:none;display:block}.auth-title{text-align:center;margin-bottom:8px;font-size:1.5rem;font-weight:700}.auth-subtitle{color:var(--text-secondary);text-align:center;margin-bottom:32px;font-size:.95rem}.auth-error{color:#fca5a5;text-align:center;background:#ef44441f;border:1px solid #ef44444d;border-radius:10px;margin-bottom:20px;padding:12px 16px;font-size:.9rem}.auth-form{flex-direction:column;gap:20px;display:flex}.form-group{flex-direction:column;gap:6px;display:flex}.form-group label{color:var(--text-secondary);font-size:.85rem;font-weight:600}.form-group input{border:1px solid var(--border-glass);color:var(--text-primary);background:#ffffff0a;border-radius:10px;outline:none;padding:14px 16px;font-size:1rem;transition:all .2s}[data-theme=light] .form-group input{background:#fff}.form-group input::placeholder{color:var(--text-muted)}.form-group input:focus{border-color:var(--primary);background:#6c3ce10f;box-shadow:0 0 0 3px #6c3ce126}.auth-submit{justify-content:center;width:100%;margin-top:8px}.auth-submit:disabled{opacity:.6;cursor:not-allowed;transform:none!important}.auth-link{text-align:center;color:var(--text-muted);margin-top:24px;font-size:.9rem}.auth-link a{color:var(--primary-light);font-weight:600;text-decoration:none}.auth-link a:hover{text-decoration:underline}.app-layout{min-height:100vh;display:flex}.app-sidebar{border-right:1px solid var(--border-glass);z-index:50;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);background:#0b0d17f2;flex-direction:column;width:260px;padding:24px 0;display:flex;position:fixed;top:0;bottom:0;left:0}[data-theme=light] .app-sidebar{background:#f8fafcf2}.sidebar-logo{background:linear-gradient(135deg,var(--gold)0%,var(--gold-light)50%,var(--primary-light)100%);-webkit-text-fill-color:transparent;border-bottom:1px solid var(--border-glass);-webkit-background-clip:text;background-clip:text;margin-bottom:12px;padding:0 24px 16px;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:1.5rem;font-weight:800;text-decoration:none;display:block}.sidebar-nav{flex-direction:column;flex:1;gap:2px;padding:0 12px;display:flex}.sidebar-link{color:var(--text-secondary);border-radius:10px;align-items:center;gap:12px;padding:8px 16px;font-size:.95rem;font-weight:500;text-decoration:none;transition:all .2s;display:flex}.sidebar-link:hover{background:var(--bg-glass);color:var(--text-primary)}.sidebar-link.active{color:var(--primary-light);background:#6c3ce126}.sidebar-link .icon{text-align:center;width:24px;font-size:1.2rem}.sidebar-divider{background:var(--border-glass);height:1px;margin:4px 24px}.sidebar-user{border-top:1px solid var(--border-glass);margin-top:auto;padding:12px 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var(--primary-light);background:#6c3ce11f}.store-topic-row.subscribed{cursor:default;opacity:.85}.store-topic-name{color:var(--text-primary);flex:1;margin-right:12px;font-size:.88rem;font-weight:500}.store-topic-actions{flex-shrink:0;align-items:center;gap:10px;display:flex}.store-price{color:var(--text-muted);font-size:.8rem;font-weight:600}.store-checkbox{border:2px solid var(--border-glass);color:#0000;border-radius:5px;justify-content:center;align-items:center;width:22px;height:22px;font-size:.75rem;transition:all .15s;display:flex}.store-checkbox.checked{background:var(--primary);border-color:var(--primary);color:#fff}.store-valid-badge{white-space:nowrap;font-size:.75rem;font-weight:600}.store-bottom-bar{background:var(--bg-glass);border-top:1px solid var(--border-glass);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);z-index:40;padding:16px 40px 24px;position:fixed;bottom:0;left:240px;right:0}.store-bottom-header{border-bottom:1px solid var(--border-glass);justify-content:space-between;align-items:center;margin-bottom:12px;padding-bottom:8px;display:flex}.store-duration-label{color:var(--text-muted);font-size:.82rem;font-weight:600}.store-selected-count{color:var(--primary-light);font-size:.82rem;font-weight:700}.store-duration-grid{grid-template-columns:repeat(6,1fr);gap:8px;margin-bottom:12px;display:grid}.store-duration-card{background:var(--bg-glass);border:1px solid var(--border-glass);cursor:pointer;color:var(--text-secondary);border-radius:10px;flex-direction:column;align-items:center;gap:2px;padding:8px 4px;transition:all .15s;display:flex}.store-duration-card:hover{border-color:var(--primary-light)}.store-duration-card.active{background:var(--primary);border-color:var(--primary);color:#fff}.store-duration-label-text{font-size:.7rem;font-weight:500}.store-duration-price{font-size:.85rem;font-weight:700}.store-activate-btn{width:100%;padding:14px;font-size:1rem}.toast-container{z-index:9999;pointer-events:none;flex-direction:column;gap:12px;display:flex;position:fixed;bottom:24px;right:24px}.toast{pointer-events:auto;background:var(--bg-card);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--border-glass);border-radius:var(--radius);align-items:center;gap:12px;min-width:300px;max-width:400px;padding:16px;transition:opacity .3s,transform .3s;animation:.3s cubic-bezier(.175,.885,.32,1.275) forwards toast-slide-in;display:flex;box-shadow:0 10px 40px #0003}.toast-success{border-left:4px solid #4caf50}.toast-error{border-left:4px solid #f44336}.toast-info{border-left:4px solid var(--primary-light)}.toast-icon{flex-shrink:0;font-size:1.25rem}.toast-message{color:var(--text-primary);flex:1;font-size:.9rem;line-height:1.4}.toast-close{color:var(--text-muted);cursor:pointer;opacity:.6;background:0 0;border:none;margin-left:auto;padding:0 4px;font-size:1.25rem;transition:opacity .2s}.toast-close:hover{opacity:1}@keyframes toast-slide-in{0%{opacity:0;transform:translate(120%)}to{opacity:1;transform:translate(0)}}@media (max-width:768px){.toast-container{align-items:center;bottom:24px;left:24px;right:24px}.toast{min-width:100%}}.error-boundary{justify-content:center;align-items:center;min-height:60vh;padding:2rem;display:flex}.error-boundary-content{text-align:center;background:var(--bg-card);border:1px solid var(--border-glass);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-radius:16px;max-width:420px;padding:2.5rem}.error-boundary-icon{margin-bottom:1rem;font-size:3.5rem}.error-boundary-title{color:var(--text-primary);margin-bottom:.5rem;font-size:1.35rem;font-weight:600}.error-boundary-message{color:var(--text-secondary);margin-bottom:1.5rem;font-size:.95rem;line-height:1.55}.error-boundary-detail{color:#ef4444;text-align:left;white-space:pre-wrap;word-break:break-word;background:#ef444414;border:1px solid #ef444433;border-radius:8px;margin-bottom:1.5rem;padding:.75rem 1rem;font-size:.8rem;overflow-x:auto}.error-boundary-actions{justify-content:center;gap:.75rem;display:flex}.error-boundary-btn{cursor:pointer;border-radius:8px;padding:.65rem 1.35rem;font-size:.9rem;font-weight:500;transition:opacity .2s,transform .15s}.error-boundary-btn:hover{opacity:.9;transform:translateY(-1px)}.error-boundary-btn.primary{background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;border:none}.error-boundary-btn.secondary{color:var(--text-secondary);border:1px solid var(--border-glass);background:0 0}.error-boundary-btn.secondary:hover{border-color:var(--text-muted);color:var(--text-primary)}